commands-wms.c

   1 #include "qmi-message.h"
   2
   3 static void cmd_wms_list_messages_cb(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg)
   4 {
   5         struct qmi_wms_list_messages_response res;
   6         int i, len = 0;
   7
   8         qmi_parse_wms_list_messages_response(msg, &res);
   9         blobmsg_alloc_string_buffer(&status, "messages", 1);
  10         for (i = 0; i < res.data.message_list_n; i++) {
  11                 len += sprintf(blobmsg_realloc_string_buffer(&status, len + 12) + len,
  12                                " %d" + (len ? 0 : 1),
  13                                            res.data.message_list[i].memory_index);
  14         }
  15         blobmsg_add_string_buffer(&status);
  16 }
  17
  18 static enum qmi_cmd_result
  19 cmd_wms_list_messages_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
  20 {
  21         static struct qmi_wms_list_messages_request mreq = {
  22                 QMI_INIT(storage_type, QMI_WMS_STORAGE_TYPE_UIM),
  23                 QMI_INIT(message_tag, QMI_WMS_MESSAGE_TAG_TYPE_MT_NOT_READ),
  24         };
  25
  26         qmi_set_wms_list_messages_request(msg, &mreq);
  27
  28         return QMI_CMD_REQUEST;
  29 }
  30
  31 static int
  32 put_unicode_char(char *dest, uint16_t c)
  33 {
  34         if (c < 0x80) {
  35                 *dest = c;
  36                 return 1;
  37         } else if (c < 0x800) {
  38                 *(dest++) = 0xc0 | ((c >> 6) & 0x1f);
  39                 *dest = 0x80 | (c & 0x3f);
  40                 return 2;
  41         } else {
  42                 *(dest++) = 0xe0 | ((c >> 12) & 0xf);
  43                 *(dest++) = 0x80 | ((c >> 6) & 0x3f);
  44                 *dest = 0x80 | (c & 0x3f);
  45                 return 3;
  46         }
  47 }
  48
  49
  50 static int
  51 pdu_decode_7bit_char(char *dest, int len, char c, bool *escape)
  52 {
  53         uint16_t conv_0x20[] = {
  54                 0x0040, 0x00A3, 0x0024, 0x00A5, 0x00E8, 0x00E9, 0x00F9, 0x00EC,
  55                 0x00F2, 0x00E7, 0x000A, 0x00D8, 0x00F8, 0x000D, 0x00C5, 0x00E5,
  56                 0x0394, 0x005F, 0x03A6, 0x0393, 0x039B, 0x03A9, 0x03A0, 0x03A8,
  57                 0x03A3, 0x0398, 0x039E, 0x00A0, 0x00C6, 0x00E6, 0x00DF, 0x00C9,
  58         };
  59         uint16_t conv_0x5b[] = {
  60                 0x00C4, 0x00D6, 0x00D1, 0x00DC, 0x00A7, 0x00BF,
  61         };
  62         uint16_t conv_0x7b[] = {
  63                 0x00E4, 0x00F6, 0x00F1, 0x00FC, 0x00E0
  64         };
  65         int cur_len = 0;
  66         uint16_t outc;
  67
  68         fprintf(stderr, " %02x", c);
  69         dest += len;
  70         if (*escape) {
  71                 switch(c) {
  72                 case 0x0A:
  73                         *dest = 0x0C;
  74                         return 1;
  75                 case 0x14:
  76                         *dest = 0x5E;
  77                         return 1;
  78                 case 0x28:
  79                         *dest = 0x7B;
  80                         return 1;
  81                 case 0x29:
  82                         *dest = 0x7D;
  83                         return 1;
  84                 case 0x2F:
  85                         *dest = 0x5C;
  86                         return 1;
  87                 case 0x3C:
  88                         *dest = 0x5B;
  89                         return 1;
  90                 case 0x3D:
  91                         *dest = 0x7E;
  92                         return 1;
  93                 case 0x3E:
  94                         *dest = 0x5D;
  95                         return 1;
  96                 case 0x40:
  97                         *dest = 0x7C;
  98                         return 1;
  99                 case 0x65:
 100                         outc = 0x20AC;
 101                         goto out;
 102                 case 0x1B:
 103                         goto normal;
 104                 default:
 105                         /* invalid */
 106                         *(dest++) = conv_0x20[0x1B];
 107                         cur_len++;
 108                         goto normal;
 109                 }
 110         }
 111
 112         if (c == 0x1b) {
 113                 *escape = true;
 114                 return 0;
 115         }
 116
 117 normal:
 118         if (c < 0x20)
 119                 outc = conv_0x20[(int) c];
 120         else if (c == 0x40)
 121                 outc = 0x00A1;
 122         else if (c >= 0x5b && c <= 0x60)
 123                 outc = conv_0x5b[c - 0x5b];
 124         else if (c >= 0x7b && c <= 0x7f)
 125                 outc = conv_0x7b[c - 0x7b];
 126         else
 127                 outc = c;
 128
 129 out:
 130         return cur_len + put_unicode_char(dest, outc);
 131 }
 132
 133 static int
 134 pdu_decode_7bit_str(char *dest, const unsigned char *data, int data_len, int bit_offset)
 135 {
 136         bool escape = false;
 137         int len = 0;
 138         int i;
 139
 140         fprintf(stderr, "Raw text:");
 141         for (i = 0; i < data_len; i++) {
 142                 int pos = (i + bit_offset) % 7;
 143
 144                 if (pos == 0) {
 145                         len += pdu_decode_7bit_char(dest, len, data[i] & 0x7f, &escape);
 146                 } else {
 147                         if (i)
 148                                 len += pdu_decode_7bit_char(dest, len,
 149                                                             (data[i - 1] >> (7 + 1 - pos)) |
 150                                                             ((data[i] << pos) & 0x7f), &escape);
 151
 152                         if (pos == 6)
 153                                 len += pdu_decode_7bit_char(dest, len, (data[i] >> 1) & 0x7f,
 154                                                             &escape);
 155                 }
 156         }
 157         dest[len] = 0;
 158         fprintf(stderr, "\n");
 159         return len;
 160 }
 161
 162 static void decode_udh(const unsigned char *data)
 163 {
 164         const unsigned char *end;
 165         unsigned int type, len;
 166
 167         len = *(data++);
 168         end = data + len;
 169         while (data < end) {
 170                 const unsigned char *val;
 171
 172                 type = data[0];
 173                 len = data[1];
 174                 val = &data[2];
 175                 data += 2 + len;
 176                 if (data > end)
 177                         break;
 178
 179                 switch (type) {
 180                 case 0:
 181                         blobmsg_add_u32(&status, "concat_ref", (uint32_t) val[0]);
 182                         blobmsg_add_u32(&status, "concat_part", (uint32_t) val[2] + 1);
 183                         blobmsg_add_u32(&status, "concat_parts", (uint32_t) val[1]);
 184                         break;
 185                 default:
 186                         break;
 187                 }
 188         }
 189 }
 190
 191 static void decode_7bit_field(char *name, const unsigned char *data, int data_len, bool udh)
 192 {
 193         const unsigned char *udh_start;
 194         char *dest;
 195         int pos_offset = 0;
 196
 197         if (udh) {
 198                 int len = data[0] + 1;
 199
 200                 udh_start = data;
 201                 data += len;
 202                 data_len -= len;
 203                 pos_offset = len % 7;
 204         }
 205
 206         dest = blobmsg_alloc_string_buffer(&status, name, 3 * (data_len * 8 / 7) + 2);
 207         pdu_decode_7bit_str(dest, data, data_len, pos_offset);
 208         blobmsg_add_string_buffer(&status);
 209
 210         if (udh)
 211                 decode_udh(udh_start);
 212 }
 213
 214 static char *pdu_add_semioctet(char *str, char val)
 215 {
 216         *str = '0' + (val & 0xf);
 217         if (*str <= '9')
 218                 str++;
 219
 220         *str = '0' + ((val >> 4) & 0xf);
 221         if (*str <= '9')
 222                 str++;
 223
 224         return str;
 225 }
 226
 227 static void
 228 pdu_decode_address(char *str, unsigned char *data, int len)
 229 {
 230         unsigned char toa;
 231
 232         toa = *(data++);
 233         switch (toa & 0x70) {
 234         case 0x50:
 235                 pdu_decode_7bit_str(str, data, len, 0);
 236                 return;
 237         case 0x10:
 238                 *(str++) = '+';
 239                 /* fall through */
 240         default:
 241                 while (len--) {
 242                         str = pdu_add_semioctet(str, *data);
 243                         data++;
 244                 }
 245         }
 246
 247         *str = 0;
 248 }
 249
 250 static void wms_decode_address(char *str, char *name, unsigned char *data, int len)
 251 {
 252         str = blobmsg_alloc_string_buffer(&status, name, len * 2 + 2);
 253         pdu_decode_address(str, data, len);
 254         blobmsg_add_string_buffer(&status);
 255 }
 256
 257 static void cmd_wms_get_message_cb(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg)
 258 {
 259         struct qmi_wms_raw_read_response res;
 260         unsigned char *data, *end;
 261         char *str;
 262         int cur_len;
 263         bool sent;
 264         unsigned char first, dcs;
 265
 266         qmi_parse_wms_raw_read_response(msg, &res);
 267         data = (unsigned char *) res.data.raw_message_data.raw_data;
 268         end = data + res.data.raw_message_data.raw_data_n;
 269
 270         cur_len = *(data++);
 271         if (data + cur_len >= end)
 272                 return;
 273
 274         if (cur_len) {
 275                 wms_decode_address(str, "smsc", data, cur_len - 1);
 276                 data += cur_len;
 277         }
 278
 279         if (data + 3 >= end)
 280                 return;
 281
 282         first = *(data++);
 283         sent = (first & 0x3) == 1;
 284         if (sent)
 285                 data++;
 286
 287         cur_len = *(data++);
 288         if (data + cur_len >= end)
 289                 return;
 290
 291         if (cur_len) {
 292                 cur_len = (cur_len + 1) / 2;
 293                 wms_decode_address(str, sent ? "receiver" : "sender", data, cur_len);
 294                 data += cur_len + 1;
 295         }
 296
 297         if (data + 3 >= end)
 298                 return;
 299
 300         /* Protocol ID */
 301         if (*(data++) != 0)
 302                 return;
 303
 304         /* Data Encoding */
 305         dcs = *(data++);
 306
 307         /* only 7-bit encoding supported for now */
 308         if (dcs & 0x0c)
 309                 return;
 310
 311         if (dcs & 0x10)
 312                 blobmsg_add_u32(&status, "class", (dcs & 3));
 313
 314         if (sent) {
 315                 /* Message validity */
 316                 data++;
 317         } else {
 318                 if (data + 6 >= end)
 319                         return;
 320
 321                 str = blobmsg_alloc_string_buffer(&status, "timestamp", 32);
 322
 323                 /* year */
 324                 *(str++) = '2';
 325                 *(str++) = '0';
 326                 str = pdu_add_semioctet(str, data[0]);
 327                 /* month */
 328                 *(str++) = '-';
 329                 str = pdu_add_semioctet(str, data[1]);
 330                 /* day */
 331                 *(str++) = '-';
 332                 str = pdu_add_semioctet(str, data[2]);
 333
 334                 /* hour */
 335                 *(str++) = ' ';
 336                 str = pdu_add_semioctet(str, data[3]);
 337                 /* minute */
 338                 *(str++) = ':';
 339                 str = pdu_add_semioctet(str, data[4]);
 340                 /* second */
 341                 *(str++) = ':';
 342                 str = pdu_add_semioctet(str, data[5]);
 343                 *str = 0;
 344
 345                 blobmsg_add_string_buffer(&status);
 346
 347                 data += 7;
 348         }
 349
 350         cur_len = *(data++);
 351         decode_7bit_field("text", data, end - data, !!(first & 0x40));
 352 }
 353
 354 static enum qmi_cmd_result
 355 cmd_wms_get_message_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
 356 {
 357         static struct qmi_wms_raw_read_request mreq = {
 358                 QMI_INIT_SEQUENCE(message_memory_storage_id,
 359                         .storage_type = QMI_WMS_STORAGE_TYPE_UIM,
 360                 ),
 361                 QMI_INIT(message_mode, QMI_WMS_MESSAGE_MODE_GSM_WCDMA),
 362         };
 363         char *err;
 364         int id;
 365
 366         id = strtoul(arg, &err, 10);
 367         if (err && *err) {
 368                 blobmsg_add_string(&status, "error", "Invalid message ID");
 369                 return QMI_CMD_EXIT;
 370         }
 371
 372         mreq.data.message_memory_storage_id.memory_index = id;
 373         qmi_set_wms_raw_read_request(msg, &mreq);
 374
 375         return QMI_CMD_REQUEST;
 376 }
 377
 378
 379 static void cmd_wms_get_raw_message_cb(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg)
 380 {
 381         struct qmi_wms_raw_read_response res;
 382         unsigned char *data;
 383         char *str;
 384         int i;
 385
 386         qmi_parse_wms_raw_read_response(msg, &res);
 387         data = (unsigned char *) res.data.raw_message_data.raw_data;
 388         str = blobmsg_alloc_string_buffer(&status, "data", res.data.raw_message_data.raw_data_n * 3);
 389         for (i = 0; i < res.data.raw_message_data.raw_data_n; i++) {
 390                 str += sprintf(str, " %02x" + (i ? 0 : 1), data[i]);
 391         }
 392         blobmsg_add_string_buffer(&status);
 393 }
 394
 395 #define cmd_wms_get_raw_message_prepare cmd_wms_get_message_prepare
 396
 397
 398 static struct {
 399         const char *smsc;
 400         const char *target;
 401         bool flash;
 402 } send;
 403
 404
 405 #define cmd_wms_send_message_smsc_cb no_cb
 406 static enum qmi_cmd_result
 407 cmd_wms_send_message_smsc_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
 408 {
 409         send.smsc = arg;
 410         return QMI_CMD_DONE;
 411 }
 412
 413 #define cmd_wms_send_message_target_cb no_cb
 414 static enum qmi_cmd_result
 415 cmd_wms_send_message_target_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
 416 {
 417         send.target = arg;
 418         return QMI_CMD_DONE;
 419 }
 420
 421 #define cmd_wms_send_message_flash_cb no_cb
 422 static enum qmi_cmd_result
 423 cmd_wms_send_message_flash_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
 424 {
 425         send.flash = true;
 426         return QMI_CMD_DONE;
 427 }
 428
 429 static int
 430 pdu_encode_semioctet(unsigned char *dest, const char *str)
 431 {
 432         int len = 0;
 433         bool lower = true;
 434
 435         while (*str) {
 436                 char digit = *str - '0';
 437
 438                 if (lower)
 439                         dest[len] = 0xf0 | digit;
 440                 else
 441                         dest[len++] &= (digit << 4) | 0xf;
 442
 443                 lower = !lower;
 444                 str++;
 445         }
 446
 447         return len;
 448 }
 449
 450 static int
 451 pdu_encode_7bit_str(unsigned char *data, const char *str)
 452 {
 453         unsigned char c;
 454         int len = 0;
 455         int ofs = 0;
 456
 457         while(1) {
 458                 c = *(str++) & 0x7f;
 459                 if (!c)
 460                         break;
 461
 462                 switch(ofs) {
 463                 case 0:
 464                         data[len] = c;
 465                         break;
 466                 default:
 467                         data[len++] |= c << (8 - ofs);
 468                         data[len] = c >> ofs;
 469                         break;
 470                 }
 471
 472                 ofs = (ofs + 1) % 8;
 473         }
 474
 475         return len + 1;
 476 }
 477
 478 static int
 479 pdu_encode_number(unsigned char *dest, const char *str, bool smsc)
 480 {
 481         unsigned char format;
 482         bool ascii = false;
 483         int len = 0;
 484         int i;
 485
 486         dest[len++] = 0;
 487         if (*str == '+') {
 488                 str++;
 489                 format = 0x91;
 490         } else {
 491                 format = 0x81;
 492         }
 493
 494         for (i = 0; str[i]; i++) {
 495                 if (str[i] >= '0' || str[i] <= '9')
 496                         continue;
 497
 498                 ascii = true;
 499                 break;
 500         }
 501
 502         if (ascii)
 503                 format |= 0x40;
 504
 505         dest[len++] = format;
 506         if (!ascii)
 507                 len += pdu_encode_semioctet(&dest[len], str);
 508         else
 509                 len += pdu_encode_7bit_str(&dest[len], str);
 510
 511         if (smsc)
 512                 dest[0] = len - 1;
 513         else
 514                 dest[0] = strlen(str);
 515
 516         return len;
 517 }
 518
 519 static int
 520 pdu_encode_data(unsigned char *dest, const char *str)
 521 {
 522         int len = 0;
 523
 524         dest[len++] = 0;
 525         len += pdu_encode_7bit_str(&dest[len], str);
 526         dest[0] = len - 1;
 527
 528         return len;
 529 }
 530
 531 #define cmd_wms_send_message_cb no_cb
 532 static enum qmi_cmd_result
 533 cmd_wms_send_message_prepare(struct qmi_dev *qmi, struct qmi_request *req, struct qmi_msg *msg, char *arg)
 534 {
 535         static unsigned char buf[512];
 536         static struct qmi_wms_raw_send_request mreq = {
 537                 QMI_INIT_SEQUENCE(raw_message_data,
 538                         .format = QMI_WMS_MESSAGE_FORMAT_GSM_WCDMA_POINT_TO_POINT,
 539                         .raw_data = buf,
 540                 ),
 541         };
 542         unsigned char *cur = buf;
 543         unsigned char first_octet = 0x11;
 544         unsigned char protocol_id = 0x00;
 545         unsigned char dcs = 0x00;
 546
 547         if (!send.smsc || !*send.smsc || !send.target || !*send.target) {
 548                 blobmsg_add_string(&status, "error", "Missing argument");
 549                 return QMI_CMD_EXIT;
 550         }
 551
 552         if (strlen(send.smsc) > 16 || strlen(send.target) > 16 || strlen(arg) > 160) {
 553                 blobmsg_add_string(&status, "error", "Argument too long");
 554                 return QMI_CMD_EXIT;
 555         }
 556
 557         if (send.flash)
 558                 dcs |= 0x10;
 559
 560         cur += pdu_encode_number(cur, send.smsc, true);
 561         *(cur++) = first_octet;
 562         *(cur++) = 0; /* reference */
 563
 564         cur += pdu_encode_number(cur, send.target, false);
 565         *(cur++) = protocol_id;
 566         *(cur++) = dcs;
 567
 568         *(cur++) = 0xff; /* validity */
 569         cur += pdu_encode_data(cur, arg);
 570
 571         mreq.data.raw_message_data.raw_data_n = cur - buf;
 572         qmi_set_wms_raw_send_request(msg, &mreq);
 573
 574         return QMI_CMD_REQUEST;
 575 }